Reassembly; Mounting; Panel Flush Mounting - Siemens SIPROTEC 7UT613 series Manual

3.1.2.5

Reassembly

3.1.3

Mounting

3.1.3.1

Panel Flush Mounting

7UT613/63x Manual
C53000-G1176-C160-2
The device is assembled in the following steps:
• Carefully insert the boards into the housing. The mounting locations of the boards
are shown in Figures 3-3 and 3-4.
For the model of the device designed for surface mounting, use the metal lever to
insert the C-CPU-2 board. The installation is easier with the lever.
• First insert the plug connectors of the ribbon cable on the input/output boards
C-I/O and then on the processor board C-CPU-2. Be careful not to bend any of the
connector pins! Do not use force!
• Insert the plug connector of the ribbon cable between the processor board C-CPU-
2 and the front cover in the socket on the front cover.
• Press plug connector interlocks together.
• Put on the front cover and screw it onto the housing.
• Put the covers back on.
• Re-fasten the interfaces on the rear of the device housing. This activity is not nec-
essary if the device is designed for surface mounting.
Depending on the version, the device housing can be
(7UT613), there are 4 covers and 4 holes. For housing size
there are 6 covers and 6 holes.
• Remove the 4 or 6 caps on the corners of the front cover to reveal the 4 or 6 elon-
gated holes in the mounting bracket.
• Insert the device into the panel cut-out and fasten it with four or six screws. For di-
mensions refer to Section 4.23.
• Mount the four or six covers.
• Connect the earth on the rear plate of the device to the protective earth of the panel.
Use at least one M4 screw for the device earth. The cross-sectional area of the
earth wire must be equal to the cross-sectional area of any other control conductor
connected to the device. The cross-section of the earth wire must be at least
2
2.5 mm .
• Connections are realised via the plug terminals or screw terminals on the rear side
of the device in accordance with the circuit diagram. For screw connections with
forked lugs or direct connection the screws must be tightened before inserting wires
so that the screw heads are flush with the outer edge of the connection block. If ring
lugs are used, the lug must be centred in the connection chamber in such a way
that the screw thread fits in the hole of the lug. The SIPROTEC 4 System Descrip-
tion /1/ has pertinent information regarding wire size, lugs, bending radii, etc.
3.1 Mounting and Connections
1 1
/ or / . For housing size
2 1
1
/ (7UT633 or 7UT635),
1
1
/
2
369